Sprinkler



0. F. ,ENGEL.

SPRINKLER. APPLICATION man MAY 25.4920.

1,400,533. Pa tented Dec. 20, 1921.

INVENTOR ATTORNEY.

l ATENT OFFICE.

OSCAR F. ENG-EL, 0F HARTFORD, CONNECTICUT.

SPRINKLER.

Specification of Letters Patent. Patented Dec. 20,1921.

Application filed May 25,1920. Serial No. 384,017.

T 0 all whom it may concern: Be it known that 1, Oscar; F. ENGEL,citizen of the United States residing at Hartford, in the county ofiartford and State of Connecticut, have invented certain new and usefulImprbvements in Sprinklers, of which the following is a specification.

This invention relates to sprinklers. I have a number of motives in viewamong them being the provision of an article of the character describedwhich is capable of inexpensive production and by which an area may beproperly and uniformly sprinkled. The sprinkler is of such characterthat the area covered by it instead of being circular or virtually so,is rectangular or practically square in view of which circumstance itrequires with the present sprinkler less water to wet down a certainarea than with those which cover an approximately circular surface. Thesprinkler is of course capable of general use although it is especiallyintended for sprinkling lawns.

With the above general objects in view and others that will appear asthenature of the invention is better understood, the same consists ofthe novel form, combination and arrangement of parts hereinafter morefully described, shown in the accompanying drawing and claimed.

In the drawing, wherein like reference characters designatecorresponding parts throughout the several views,

Figure l is a transverse section of a sprinkler involving the invention.7

Figs. 2 and 3 are cross sections of the rose or sprinkling portion takenon plans different from each other and from that of Fig. 1.

Fig. 4. is a top plan view showing by dotted lines on a smaller scale,the rectangular field covered by the sprinkler.

Like characters refer to like parts throughout the several views.

The sprinkler comprises a body or shell 2 which may for instance beformed by casting, and a cap such as the rose or operative portion 3usually made from sheet metal. As illustrated the body or shell 2 ispraotically cylindrical and obviously it is hollow or chambered. Thecap, rose or operative portion 3 is of part spherical shape. Asillustrated the wall portion of thebody or shell 2 has on the upper sidethereof, the circular rabbet tin which the lower edge of the cap, roseor operative portion 3 is closely fitted and permanently held in somewatertight manner. As will be inferred the cap, rose or operativeportion has a multiplicity of jet openings which will be hereinafterorifices or jet openings as 6, the openings of the respective groupsbeing substantially radially arranged and being along linesapproximately ninety degrees apart. The water passing through theseorifices or jet openings 6 delivers the longest streams and this isaccomplished by making the trajectories of the streams issuing from saidopenings or orificesfi lower than those emerging from the groups oforifices between those denoted by 6. The orifices 7 8, 9, 10, and 11 arebetween the orifices 6 of the respective series. The trajectories of theorifices 7 and 11 are higher than those issuing from the orifices 6 andas a result the streams emerging from the orifices 7 and 11 are shorterthan the streams issuing from the orifices 6. In like fashion thestreams issuing from the orifices 8 and 10 are shorter than thoseissuing from the orifices 7 and 11 their trajectories of course beinghigher. Again the streams issuing from the extreme middle orifices 9 areshorter than those issuing from the other orifices their trajectoriesbeing the maximum height. as a consequence of this condition the surfacecovered by the liquid will be rectangular and desirably square. This isan important advantage obviously because less water will be required tocover a field made up of a series of rectangular areas than would berequisite to wet down a similarly sized field where the areas cov eredare circular. So that the orifices in the cap 3 may be properlypositioned to accurately direct the streams emerging therefrom, saidorifices filGTOliilQd at the bottoms of indentations or apertures 8which are shaped a little diiferently from each other in order to obtainthe requisite result. It will be noticed that the several-orifices towhich I have referred are formed in the lll) V the sprinkler.

This is important in that the streams are accurately delivered WithoutWaste or loss.

What I claim is:

A sprinkler of the class'desoriloed oomprising a hollow body having'itsupper end open and provided adjacent thereto with a rabbeted portionforming a seat, a laterally extending hollow supply nipple formed on andcommunicating with said 'body at its lower end, a semi-spherical capremovably fitted in said seat of the body, means for removably fasteningsaid cap to said body, and. said cap having a plurality of ofiset 15circumferentially extending perforated portions formed therein, for thepurpose specified. V .Y

' Intestimony whereof I affix my signature.

OSCAR VF. Eileen In presence of-

